{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Model families","items":[{"count":27,"name":"Thorp T-18","note":"","unit":"registered","url":"https://eflight.com/models/thorp/t-18"}],"relation":"makes"},{"group":"Engines","items":[{"count":14,"name":"Lycoming O-320 series","note":"180 hp","unit":"of these aircraft","url":"https://eflight.com/engines/lycoming-o-320-series"},{"count":8,"name":"Lycoming O-290 series","note":"140 hp","unit":"of these aircraft","url":"https://eflight.com/engines/lycoming-o-290-series"},{"count":4,"name":"Lycoming O-360 / VO-360 series","note":"180 hp","unit":"of these aircraft","url":"https://eflight.com/engines/lycoming-o-360-vo-360-series"}],"relation":"powered by"},{"group":"Where they are","items":[{"count":4,"name":"Florida","note":"","unit":"of these aircraft","url":"https://eflight.com/states/FL"},{"count":4,"name":"Colorado","note":"","unit":"of these aircraft","url":"https://eflight.com/states/CO"},{"count":3,"name":"California","note":"","unit":"of these aircraft","url":"https://eflight.com/states/CA"},{"count":2,"name":"Texas","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TX"},{"count":2,"name":"Illinois","note":"","unit":"of these aircraft","url":"https://eflight.com/states/IL"}],"relation":"registered in"},{"group":"Record","items":[{"count":19,"name":"NTSB accidents and incidents involving Thorp aircraft","note":"as the NTSB spells the maker's name","unit":"cases since 1982","url":"https://eflight.com/analytics/accidents-by-model"}],"relation":"involved in"},{"group":"Analytics","items":[{"count":null,"name":"Biggest makers and model families","note":"","unit":"","url":"https://eflight.com/analytics/makers"},{"count":null,"name":"Accidents by model and by maker","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-model"}],"relation":"compared in"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"id":"thorp","name":"Thorp","registered":27,"type":"maker","url":"https://eflight.com/makers/thorp"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}